List of Articles Open Access Article Abstract Page Full-Text 1 - Synthesis and characterization of a porous acidic polymer containing pendant pyrazine moieties based on calix[4]resorcinarene: A green and retrievable solid acid catalyst for preparation of benzimidazole heterosystems Somayeh elahi Hamid Derispour Open Access Article Abstract Page Full-Text 2 - A New Perspective on the Design, Synthesis, and Applications of Co(NO₃)₂·6H₂O in Enhancing Catalyst Performance Reyhaneh Sezari Open Access Article Abstract Page Full-Text 3 - The Investigating and comparing the spectroscopic impedance of the electrode modified by polypyrrole in the presence of chromium, copper and iron Nafiseh Hajiabdolah Mohammad Yousefi Open Access Article Abstract Page Full-Text 4 - Efficient synthesis of novel [1,3,4]thiadiazino[6,5-b]quinoxaline derivatives Behnoush Ravizadeh mohsen Nikpour Haman Tavakkoli Open Access Article Abstract Page Full-Text 5 - Preparation of Al2O3-SO3H and nano Al2O3-SO3H as a heterogeneous catalyst for the one-pot tree component synthesis of Hexahydroquinazolinone Masoumeh mehrabi asad allah farhadi Neda Hasanzadeh Ali Kiasat Open Access Article Abstract Page Full-Text 6 - Nano drugs in modern Drug delivery : "advances , application and economic challenges" Kiyana Ghasemi Ghasemvand Atoosa Mohammadasgari